What's inside the first sample of rock powder collected from Mars? Several scientists from NASA will give a press conference at 1 p.m. ET to discuss the findings from the Curiosity rover.

NASA scientists talk about Mars rock collected by Curiosity Rover (WATCH LIVE)

Watch the NASA press conference streaming live The Curiosity rover landed on Mars on Aug. 6, 2012 and will stay on the planet for a total of 23 months. The rover will be looking for evidence that life has existed on Mars. In February, the rover became the first to drill into the surface of Mars. It collected about a tablespoon of gray matter. Today's press conference will detail what was found from the analysis of that matter. Keep up ...

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